1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 18 package android.opengl.cts; 19 20 import java.nio.ByteBuffer; 21 import java.nio.ByteOrder; 22 import java.nio.FloatBuffer; 23 import java.nio.IntBuffer; 24 import java.nio.ShortBuffer; 25 import java.util.concurrent.CountDownLatch; 26 import javax.microedition.khronos.egl.EGLConfig; 27 import javax.microedition.khronos.opengles.GL10; 28 29 import android.content.Context; 30 import android.opengl.GLES20; 31 import android.opengl.GLSurfaceView; 32 import android.opengl.GLU; 33 import android.util.Log; 34 35 public class RendererOneColorBufferTest extends RendererBase { 36 private int mProgramObject; 37 private int mWidth; 38 private int mHeight; 39 private FloatBuffer mVertices; 40 private ShortBuffer mIndexBuffer; 41 42 private static String TAG = "RendererOneColorBufferTest"; 43 44 // Our vertices. 45 private float mVerticesData[] = { 46 -0.5f, 0.5f, 0.0f, // 0, Top Left 47 -0.5f, -0.5f, 0.0f, // 1, Bottom Left 48 0.5f, -0.5f, 0.0f, // 2, Bottom Right 49 0.5f, 0.5f, 0.0f, // 3, Top Right 50 }; 51 52 private float[] mVertexColor = { 53 1.0f, 0.0f, 0.0f, 1.0f, 54 1.0f, 0.0f, 0.0f, 1.0f, 55 1.0f, 0.0f, 0.0f, 1.0f, 56 1.0f, 0.0f, 0.0f, 1.0f 57 }; 58 59 // The order we like to connect them. 60 private short[] mIndices = { 0, 1, 2, 0, 2, 3 }; 61 private FloatBuffer mColor; 62 63 64 public RendererOneColorBufferTest(Context context, CountDownLatch latch) { 65 super(latch); 66 mVertices = ByteBuffer.allocateDirect(mVerticesData.length * 4) 67 .order(ByteOrder.nativeOrder()).asFloatBuffer(); 68 mVertices.put(mVerticesData).position(0); 69 70 ByteBuffer ibb = ByteBuffer.allocateDirect(mIndices.length * 2); 71 ibb.order(ByteOrder.nativeOrder()); 72 mIndexBuffer = ibb.asShortBuffer(); 73 mIndexBuffer.put(mIndices); 74 mIndexBuffer.position(0); 75 76 mColor = ByteBuffer.allocateDirect(mVertexColor.length*4). 77 order(ByteOrder.nativeOrder()).asFloatBuffer(); 78 mColor.put(mVertexColor).position(0); 79 } 80 81 public RendererOneColorBufferTest(Context context, float[] colors, CountDownLatch latch) { 82 super(latch); 83 mVertexColor = colors; 84 mVertices = ByteBuffer.allocateDirect(mVerticesData.length * 4) 85 .order(ByteOrder.nativeOrder()).asFloatBuffer(); 86 mVertices.put(mVerticesData).position(0); 87 88 ByteBuffer ibb = ByteBuffer.allocateDirect(mIndices.length * 2); 89 ibb.order(ByteOrder.nativeOrder()); 90 mIndexBuffer = ibb.asShortBuffer(); 91 mIndexBuffer.put(mIndices); 92 mIndexBuffer.position(0); 93 94 mColor = ByteBuffer.allocateDirect(mVertexColor.length*4). 95 order(ByteOrder.nativeOrder()).asFloatBuffer(); 96 mColor.put(mVertexColor).position(0); 97 } 98 99 private int LoadShader(int type, String shaderSrc) { 100 int shader; 101 int[] compiled = new int[1]; 102 103 // Create the shader object 104 shader = GLES20.glCreateShader(type); 105 106 if (shader == 0) 107 return 0; 108 109 // Load the shader source 110 GLES20.glShaderSource(shader, shaderSrc); 111 112 // Compile the shader 113 GLES20.glCompileShader(shader); 114 115 // Check the compile status 116 GLES20.glGetShaderiv(shader, GLES20.GL_COMPILE_STATUS, compiled, 0); 117 118 if (compiled[0] == 0) { 119 Log.e(TAG, GLES20.glGetShaderInfoLog(shader)); 120 GLES20.glDeleteShader(shader); 121 return 0; 122 } 123 return shader; 124 } 125 126 127 public void onSurfaceCreated(GL10 glUnused, EGLConfig config) { 128 String vShaderStr = 129 "attribute vec4 vPosition; \n" 130 + "attribute vec4 vColor; \n" 131 + "varying vec4 varyColor; \n" 132 + "void main() \n" 133 + "{ \n" 134 + " gl_Position = vPosition; \n" 135 + " varyColor = vColor; \n" 136 + "} \n"; 137 138 String fShaderStr = 139 "precision mediump float; \n" 140 + "varying vec4 varyColor; \n" 141 + "void main() \n" 142 + "{ \n" 143 + " gl_FragColor = varyColor; \n" 144 + "} \n"; 145 146 int vertexShader; 147 int fragmentShader; 148 int programObject; 149 int[] linked = new int[1]; 150 151 // Load the vertex/fragment shaders 152 vertexShader = LoadShader(GLES20.GL_VERTEX_SHADER, vShaderStr); 153 fragmentShader = LoadShader(GLES20.GL_FRAGMENT_SHADER, fShaderStr); 154 155 // Create the program object 156 programObject = GLES20.glCreateProgram(); 157 158 if (programObject == 0) 159 return; 160 161 GLES20.glAttachShader(programObject, vertexShader); 162 GLES20.glAttachShader(programObject, fragmentShader); 163 164 // Bind vPosition to attribute 0 165 GLES20.glBindAttribLocation(programObject, 0, "vPosition"); 166 GLES20.glBindAttribLocation(programObject, 1, "vColor"); 167 168 // Link the program 169 GLES20.glLinkProgram(programObject); 170 171 // Check the link status 172 GLES20.glGetProgramiv(programObject, GLES20.GL_LINK_STATUS, linked, 0); 173 174 if (linked[0] == 0) 175 { 176 Log.e(TAG, "Error linking program:"); 177 Log.e(TAG, GLES20.glGetProgramInfoLog(programObject)); 178 GLES20.glDeleteProgram(programObject); 179 return; 180 } 181 182 // Store the program object 183 mProgramObject = programObject; 184 185 GLES20.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 186 } 187 188 public void doOnDrawFrame(GL10 glUnused) 189 { 190 // Clear the color buffer 191 GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT); 192 193 // Use the program object 194 GLES20.glUseProgram(mProgramObject); 195 196 // Load the vertex data 197 GLES20.glVertexAttribPointer(0, 3, GLES20.GL_FLOAT, false, 0, mVertices); 198 GLES20.glEnableVertexAttribArray(0); 199 200 int mColorHandle = GLES20.glGetAttribLocation(mProgramObject, "vColor"); 201 GLES20.glVertexAttribPointer(mColorHandle, 4, GLES20.GL_FLOAT, false, 0, mColor); 202 GLES20.glEnableVertexAttribArray(1); 203 204 GLES20.glDrawElements(GLES20.GL_TRIANGLES, mIndices.length, 205 GLES20.GL_UNSIGNED_SHORT, mIndexBuffer); 206 207 int x = 1; 208 int y =1; 209 IntBuffer pinbuffer = IntBuffer.allocate(1*1*4); 210 211 GLES20.glReadPixels(mWidth/2, mHeight/2, 1, 1, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, 212 pinbuffer); 213 int [] pin = pinbuffer.array(); 214 int pixel = pin[0]; 215 float a = (pixel >> 24) & 0xFF; 216 float b = (pixel >> 16) & 0xFF; 217 float g = (pixel >> 8) & 0xFF; 218 float r = pixel & 0xFF; 219 Log.i(TAG, "w " + mWidth + " h " + mHeight + " rgba" + r + " " + g + " " + b + " " + a); 220 mColorOne[0] = r; 221 mColorOne[1] = g; 222 mColorOne[2] = b; 223 mColorOne[3] = a; 224 } 225 226 public float[] getActualRGBA() { 227 return this.mColorOne; 228 } 229 230 public void onSurfaceChanged(GL10 glUnused, int width, int height) { 231 Log.i(TAG, "onSurfaceChanged " + width + " " + height); 232 mWidth = width; 233 mHeight = height; 234 // Set the viewport 235 GLES20.glViewport(0, 0, mWidth, mHeight); 236 } 237 } 238
